METHOD AND APPARATUS FOR BENDING COMPOSITE REINFORCED PIPE

摘要

An induction heater is used to heat composite reinforced pipe (CRP) prior to a bending operation. By heating the composite reinforcement to approximately 32,2° C - 43,33° C (90° F - 110° F), the incidence of circumferential stress cracks in the resin is significantly reduced. Resin cracking is also reduced by incorporating longitudinal fibers in the composite reinforcement during manufacture of CRP.